Examples with Interpolator android.view.animation.Interpolator used on opensource projects

Example 6 with Interpolator

use of android.view.animation.Interpolator in project SmartAndroidSource by jaychou2012.

the class IntKeyframeSet method getIntValue.

public int getIntValue(float fraction) {
    if (mNumKeyframes == 2) {
        if (firstTime) {
            firstTime = false;
            firstValue = ((IntKeyframe) mKeyframes.get(0)).getIntValue();
            lastValue = ((IntKeyframe) mKeyframes.get(1)).getIntValue();
            deltaValue = lastValue - firstValue;
        }
        if (mInterpolator != null) {
            fraction = mInterpolator.getInterpolation(fraction);
        }
        if (mEvaluator == null) {
            return firstValue + (int) (fraction * deltaValue);
        } else {
            return ((Number) mEvaluator.evaluate(fraction, firstValue, lastValue)).intValue();
        }
    }
    if (fraction <= 0f) {
        final IntKeyframe prevKeyframe = (IntKeyframe) mKeyframes.get(0);
        final IntKeyframe nextKeyframe = (IntKeyframe) mKeyframes.get(1);
        int prevValue = prevKeyframe.getIntValue();
        int nextValue = nextKeyframe.getIntValue();
        float prevFraction = prevKeyframe.getFraction();
        float nextFraction = nextKeyframe.getFraction();
        final Interpolator /*Time*/
        interpolator = nextKeyframe.getInterpolator();
        if (interpolator != null) {
            fraction = interpolator.getInterpolation(fraction);
        }
        float intervalFraction = (fraction - prevFraction) / (nextFraction - prevFraction);
        return mEvaluator == null ? prevValue + (int) (intervalFraction * (nextValue - prevValue)) : ((Number) mEvaluator.evaluate(intervalFraction, prevValue, nextValue)).intValue();
    } else if (fraction >= 1f) {
        final IntKeyframe prevKeyframe = (IntKeyframe) mKeyframes.get(mNumKeyframes - 2);
        final IntKeyframe nextKeyframe = (IntKeyframe) mKeyframes.get(mNumKeyframes - 1);
        int prevValue = prevKeyframe.getIntValue();
        int nextValue = nextKeyframe.getIntValue();
        float prevFraction = prevKeyframe.getFraction();
        float nextFraction = nextKeyframe.getFraction();
        final Interpolator /*Time*/
        interpolator = nextKeyframe.getInterpolator();
        if (interpolator != null) {
            fraction = interpolator.getInterpolation(fraction);
        }
        float intervalFraction = (fraction - prevFraction) / (nextFraction - prevFraction);
        return mEvaluator == null ? prevValue + (int) (intervalFraction * (nextValue - prevValue)) : ((Number) mEvaluator.evaluate(intervalFraction, prevValue, nextValue)).intValue();
    }
    IntKeyframe prevKeyframe = (IntKeyframe) mKeyframes.get(0);
    for (int i = 1; i < mNumKeyframes; ++i) {
        IntKeyframe nextKeyframe = (IntKeyframe) mKeyframes.get(i);
        if (fraction < nextKeyframe.getFraction()) {
            final Interpolator /*Time*/
            interpolator = nextKeyframe.getInterpolator();
            if (interpolator != null) {
                fraction = interpolator.getInterpolation(fraction);
            }
            float intervalFraction = (fraction - prevKeyframe.getFraction()) / (nextKeyframe.getFraction() - prevKeyframe.getFraction());
            int prevValue = prevKeyframe.getIntValue();
            int nextValue = nextKeyframe.getIntValue();
            return mEvaluator == null ? prevValue + (int) (intervalFraction * (nextValue - prevValue)) : ((Number) mEvaluator.evaluate(intervalFraction, prevValue, nextValue)).intValue();
        }
        prevKeyframe = nextKeyframe;
    }
    // shouldn't get here
    return ((Number) mKeyframes.get(mNumKeyframes - 1).getValue()).intValue();
}

Example 7 with Interpolator

use of android.view.animation.Interpolator in project SmartAndroidSource by jaychou2012.

the class KeyframeSet method getValue.

/**
     * Gets the animated value, given the elapsed fraction of the animation (interpolated by the
     * animation's interpolator) and the evaluator used to calculate in-between values. This
     * function maps the input fraction to the appropriate keyframe interval and a fraction
     * between them and returns the interpolated value. Note that the input fraction may fall
     * outside the [0-1] bounds, if the animation's interpolator made that happen (e.g., a
     * spring interpolation that might send the fraction past 1.0). We handle this situation by
     * just using the two keyframes at the appropriate end when the value is outside those bounds.
     *
     * @param fraction The elapsed fraction of the animation
     * @return The animated value.
     */
public Object getValue(float fraction) {
    // Special-case optimization for the common case of only two keyframes
    if (mNumKeyframes == 2) {
        if (mInterpolator != null) {
            fraction = mInterpolator.getInterpolation(fraction);
        }
        return mEvaluator.evaluate(fraction, mFirstKeyframe.getValue(), mLastKeyframe.getValue());
    }
    if (fraction <= 0f) {
        final Keyframe nextKeyframe = mKeyframes.get(1);
        final Interpolator /*Time*/
        interpolator = nextKeyframe.getInterpolator();
        if (interpolator != null) {
            fraction = interpolator.getInterpolation(fraction);
        }
        final float prevFraction = mFirstKeyframe.getFraction();
        float intervalFraction = (fraction - prevFraction) / (nextKeyframe.getFraction() - prevFraction);
        return mEvaluator.evaluate(intervalFraction, mFirstKeyframe.getValue(), nextKeyframe.getValue());
    } else if (fraction >= 1f) {
        final Keyframe prevKeyframe = mKeyframes.get(mNumKeyframes - 2);
        final Interpolator /*Time*/
        interpolator = mLastKeyframe.getInterpolator();
        if (interpolator != null) {
            fraction = interpolator.getInterpolation(fraction);
        }
        final float prevFraction = prevKeyframe.getFraction();
        float intervalFraction = (fraction - prevFraction) / (mLastKeyframe.getFraction() - prevFraction);
        return mEvaluator.evaluate(intervalFraction, prevKeyframe.getValue(), mLastKeyframe.getValue());
    }
    Keyframe prevKeyframe = mFirstKeyframe;
    for (int i = 1; i < mNumKeyframes; ++i) {
        Keyframe nextKeyframe = mKeyframes.get(i);
        if (fraction < nextKeyframe.getFraction()) {
            final Interpolator /*Time*/
            interpolator = nextKeyframe.getInterpolator();
            if (interpolator != null) {
                fraction = interpolator.getInterpolation(fraction);
            }
            final float prevFraction = prevKeyframe.getFraction();
            float intervalFraction = (fraction - prevFraction) / (nextKeyframe.getFraction() - prevFraction);
            return mEvaluator.evaluate(intervalFraction, prevKeyframe.getValue(), nextKeyframe.getValue());
        }
        prevKeyframe = nextKeyframe;
    }
    // shouldn't reach here
    return mLastKeyframe.getValue();
}

Example 8 with Interpolator

use of android.view.animation.Interpolator in project Carbon by ZieIony.

the class CollapsingToolbarLayout method startReveal.

@Override
public Animator startReveal(int x, int y, float startRadius, float finishRadius) {
    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT_WATCH) {
        android.animation.Animator circularReveal = ViewAnimationUtils.createCircularReveal(this, x, y, startRadius, finishRadius);
        circularReveal.start();
        return new Animator() {

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public long getStartDelay() {
                return circularReveal.getStartDelay();
            }

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public void setStartDelay(long startDelay) {
                circularReveal.setStartDelay(startDelay);
            }

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public Animator setDuration(long duration) {
                circularReveal.setDuration(duration);
                return this;
            }

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public long getDuration() {
                return circularReveal.getDuration();
            }

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public void setInterpolator(Interpolator value) {
                circularReveal.setInterpolator(value);
            }

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public boolean isRunning() {
                return circularReveal.isRunning();
            }
        };
    } else {
        reveal = new Reveal(x, y, startRadius);
        ValueAnimator animator = ValueAnimator.ofFloat(startRadius, finishRadius);
        animator.setDuration(Carbon.getDefaultRevealDuration());
        animator.addUpdateListener(animation -> {
            reveal.radius = (float) animation.getAnimatedValue();
            reveal.mask.reset();
            reveal.mask.addCircle(reveal.x, reveal.y, Math.max(reveal.radius, 1), Path.Direction.CW);
            postInvalidate();
        });
        animator.addListener(new AnimatorListenerAdapter() {

            @Override
            public void onAnimationCancel(Animator animation) {
                reveal = null;
            }

            @Override
            public void onAnimationEnd(Animator animation) {
                reveal = null;
            }
        });
        animator.start();
        return animator;
    }
}

Example 9 with Interpolator

use of android.view.animation.Interpolator in project Carbon by ZieIony.

the class ConstraintLayout method startReveal.

@Override
public Animator startReveal(int x, int y, float startRadius, float finishRadius) {
    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT_WATCH) {
        android.animation.Animator circularReveal = ViewAnimationUtils.createCircularReveal(this, x, y, startRadius, finishRadius);
        circularReveal.start();
        return new Animator() {

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public long getStartDelay() {
                return circularReveal.getStartDelay();
            }

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public void setStartDelay(long startDelay) {
                circularReveal.setStartDelay(startDelay);
            }

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public Animator setDuration(long duration) {
                circularReveal.setDuration(duration);
                return this;
            }

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public long getDuration() {
                return circularReveal.getDuration();
            }

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public void setInterpolator(Interpolator value) {
                circularReveal.setInterpolator(value);
            }

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public boolean isRunning() {
                return circularReveal.isRunning();
            }
        };
    } else {
        reveal = new Reveal(x, y, startRadius);
        ValueAnimator animator = ValueAnimator.ofFloat(startRadius, finishRadius);
        animator.setDuration(Carbon.getDefaultRevealDuration());
        animator.addUpdateListener(animation -> {
            reveal.radius = (float) animation.getAnimatedValue();
            reveal.mask.reset();
            reveal.mask.addCircle(reveal.x, reveal.y, Math.max(reveal.radius, 1), Path.Direction.CW);
            postInvalidate();
        });
        animator.addListener(new AnimatorListenerAdapter() {

            @Override
            public void onAnimationCancel(Animator animation) {
                reveal = null;
            }

            @Override
            public void onAnimationEnd(Animator animation) {
                reveal = null;
            }
        });
        animator.start();
        return animator;
    }
}

Example 10 with Interpolator

use of android.view.animation.Interpolator in project Carbon by ZieIony.

the class RelativeLayout method startReveal.

@Override
public Animator startReveal(int x, int y, float startRadius, float finishRadius) {
    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT_WATCH) {
        android.animation.Animator circularReveal = ViewAnimationUtils.createCircularReveal(this, x, y, startRadius, finishRadius);
        circularReveal.start();
        return new Animator() {

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public long getStartDelay() {
                return circularReveal.getStartDelay();
            }

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public void setStartDelay(long startDelay) {
                circularReveal.setStartDelay(startDelay);
            }

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public Animator setDuration(long duration) {
                circularReveal.setDuration(duration);
                return this;
            }

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public long getDuration() {
                return circularReveal.getDuration();
            }

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public void setInterpolator(Interpolator value) {
                circularReveal.setInterpolator(value);
            }

            @Override
            @RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
            public boolean isRunning() {
                return circularReveal.isRunning();
            }
        };
    } else {
        reveal = new Reveal(x, y, startRadius);
        ValueAnimator animator = ValueAnimator.ofFloat(startRadius, finishRadius);
        animator.setDuration(Carbon.getDefaultRevealDuration());
        animator.addUpdateListener(animation -> {
            reveal.radius = (float) animation.getAnimatedValue();
            reveal.mask.reset();
            reveal.mask.addCircle(reveal.x, reveal.y, Math.max(reveal.radius, 1), Path.Direction.CW);
            postInvalidate();
        });
        animator.addListener(new AnimatorListenerAdapter() {

            @Override
            public void onAnimationCancel(Animator animation) {
                reveal = null;
            }

            @Override
            public void onAnimationEnd(Animator animation) {
                reveal = null;
            }
        });
        animator.start();
        return animator;
    }
}